Learn more about popular information, gameplay skills, digital reviews, and popular science. Click on the upper right corner to follow us
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Friends who are interested in electric vehicles know that Tesla's "Battery Day" is equivalent to Apple's annual new product launch conference in the new energy vehicle circle. Many new brands of new technologies and new products gather together, which is enough to cause a stir in the industry.
However, friends from the technology group said that the Apple press conference a few days ago was hasty and all products were released, but the most important mobile phone was not released, which caused Apple fans to lose.
But fortunately, Tesla's "Battery Day" was only postponed, and the content of the press conference will not fool people. Tesla's "Battery Day" will announce the company's latest technological progress, mainly involving technological improvements in batteries, as well as various advanced technologies under development.
battery day's preview of the undercover visit to Volkswagen
Not long ago, Tesla CEO Elon Marx ended his three-day visit to Germany. Due to the impact of environmental storm and the epidemic, the construction period of the factory was delayed, and it is necessary to quickly promote the construction of the factory. One of the main purposes of his German business trip.
During these three days, Musk had a secret "trick" with Volkswagen Group CEO Diss for about two hours. Musk also tested the new Volkswagen ID.3 pure electric car and gave a high evaluation.
The outside world discussed this secret "trick" between Tesla and Volkswagen, and everyone thought that Tesla and Volkswagen were going to hold hands to give the new energy market a big ending.
no one expected that after a few days, Volkswagen Group came out to clarify that the two sides were just simply discussing and exchanging their experiences. People from the outside world shouted, "I'm ready with my tissues, can you show me this?" However, for all new energy vehicle companies, this news is undoubtedly a reassurance. After all, every move of both sides always affects the direction of industry trends.
It is worth mentioning that Tesla's German Gigafactory will start operations in July 2021, and Musk is likely to announce progress in this regard on "Battery Day".
When producing Tesla Model Y at the German Gigafactory, Musk will enable a new coating system and launch a revolution in the field of body engineering. One of the developments in could be the use of large casting machines that use fewer and larger parts when manufacturing the body, minimizing welding, reducing production costs, and speeding up production.
get rid of dependence and self-sufficiency
With the arrival of electric day, Tesla has recently made new trends. According to Reuters, Tesla is currently discussing with Canadian mining companies (Giga Metals) how to develop a large mine, which will allow Tesla to obtain enough low-carbon nickel to meet the growing demand for electric vehicles.
According to the official website of Jijia Metal, the mine has measured and shown that the reserves are 2.36 million tons of nickel and 141,000 tons of cobalt, and it is planned to produce 40,000 tons of nickel and 2,000 tons of cobalt each year within 20 years. Nickel is an important raw material in the production of lithium-ion battery , and lithium-ion batteries are the power source of most Tesla electric vehicles.
This year, Tesla applied for a single crystal nickel-cobalt aluminum electrode technology patent. This patent is a method to synthesize nickel-cobalt aluminum electrodes. The battery using this new electrode can be charged 4,000 times in its life cycle. The range of the battery is expected to exceed 1 million miles (about 1.6 million kilometers).
At present, Tesla's electric vehicles' batteries mainly rely on companies such as Panasonic and LG Chemistry . This time Tesla purchased low-carbon nickel to develop million-mile batteries, cobalt-free batteries, dry electrode technology and silicon nanowire technology, which is undoubtedly a precursor to the dependence on battery suppliers.
leak exposure = invisible momentum
Recently, a leaked picture of a battery appeared on the Internet. There are rumors that this is a battery of Tesla's "Roadrunner" series.If the exposed spy photos are real, it also indicates that the technology released on Battery Day will not only meet expectations, but also far exceed expectations.
This leaked image was originally published in a report on the Electrek website, showing a large battery cell, which is said to be the product of the Roadrunner series. The report noted that the photo was sent through anonymous sources and was confirmed by another independent source.
This battery is huge and its size is closer to a supercapacitor than a traditional battery cell. Preliminary observations of battery enthusiasts on the Internet also pointed out that this battery design will bring some fundamental improvements.
Through careful observation by netizens, they found that the word "054" was printed on the surface of the Roadrunner battery cell. If this number represents the diameter of the battery, it means that the Roadrunner battery is in a package size of 54×98, and its volume is 10 times that of the 2170 battery.
If Tesla uses a Roadrunner battery with a size of 54×98, it will have many impacts on the entire battery manufacturing process and the overall performance of Tesla cars. Using larger batteries, Tesla can produce a battery pack of one order of magnitude less than before. only uses 1/10 of the reels, cans, electrolyte filling and welding quantity, which helps reduce the cost price of electric vehicles.
Of course, we have reason to believe that the upcoming Tesla "Battery Day" will announce more unexpected news. Just like the Apple press conference every year, Apple will release various "big moves" to widen the gap with its opponents. Tesla will release new technology through this electric day, which will probably be a few streets away from its competitors.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
